SERAFIM, I. R.; SANTOS, J. C.; FERREIRA, R. L. Ghosts of subterranean waters: two new troglobitic species of Spelaeometra D. Polhemus & Ferreira, 2018 (Heteroptera: Hydrometridae) from Brazil, with remarks on the enigmatic species Cephalometra pallida D. Polhemus & Ferreira, 2018. European Journal of Taxonomy, v. 1077, p. 1–28, 20 Jul. 2026.